公开(公告)号：DE4302992A1

公开(公告)日：1994-08-04

申请号：DE4302992

申请日：1993-02-03

Applicant: BASF AG

Inventor： TENTEN ANDREAS DR ,  HAMMON ULRICH DR ,  WEIDLICH PETER DR ,  DOERFLINGER WALTER

IPC: B01J23/85 ,  B01J23/88 ,  B01J23/92 ,  B01J23/94 ,  B01J38/48 ,  B01J38/52 ,  B01J38/62 ,  B01J38/68 ,  C07C57/055

Abstract: Process for regenerating spent multimetal oxide oxidation catalysts from catalytic gas-phase oxidations of lower organic compounds, which catalysts, unspent, contain as base constituents the elements Mo, W, V and Cu in oxide form, by the action of oxidising agents and of solubilising aqueous ammonia containing added acetic acid and/or the ammonium salt thereof and subsequent drying and calcination in which, within the process, the content of the metallic constituents is quantitatively determined and supplemented to the respective original value.

公开(公告)号：CZ386792A3

公开(公告)日：1993-12-15

申请号：CS386792

申请日：1992-12-23

Applicant: BASF AG

Inventor： DUEMBGEN GERD DR ,  FIEDLER ECKHARD DR ,  HAMMON ULRICH DR ,  THIESSEN FRITZ DR ,  VOGEL HERBERT DR

IPC: C07C51/44 ,  C07C51/487 ,  C07C51/50 ,  C07C57/04 ,  C07C57/055 ,  C07C57/07

公开(公告)号：DE4201697A1

公开(公告)日：1993-07-29

申请号：DE4201697

申请日：1992-01-23

Applicant: BASF AG

Inventor： DUEMBGEN GERD DR ,  FIEDLER ECKHARD DR ,  HAMMON ULRICH DR ,  THIESSEN FRITZ DR ,  VOGEL HERBERT DR

IPC: C07C51/44 ,  C07C51/487 ,  C07C51/50 ,  C07C57/04 ,  C07C57/055 ,  C07C57/07

公开(公告)号：DE4132684A1

公开(公告)日：1993-04-08

申请号：DE4132684

申请日：1991-10-01

Applicant: BASF AG

Inventor： HAMMON ULRICH DR ,  HERZOG KLAUS DR ,  NEUMANN HANS-PETER DR

IPC: C07C51/235 ,  B01J27/186 ,  B01J27/188 ,  B01J27/19 ,  B01J27/195 ,  B01J27/199 ,  C07C51/25 ,  C07C57/04 ,  C07C57/055

Abstract: A process for the catalytic gas-phase oxidation of methacrolein to methacrylic acid in a fixed-bed reactor with contacting tubes, at elevated temperature on catalytically active oxides with a conversion of methacrolein for a single pass of from 40 to 95 mol%, wherein the reaction temperature in the flow direction along the contacting tubes in a first reaction zone from entry of the starting reaction gases containing the reactants into the contacting tubes is from 280 to 340 DEG C. until a methacrolein conversion of from 20 to 40% is reached, and the reaction temperature is subsequently reduced by a total of from 5 DEG to 40 DEG C., abruptly or successively in steps or continuously along the contacting tubes until a methacrolein conversion of from 45 to 95% has been reached, with the proviso that the reaction temperature in this second reaction zone is not lower than 260 DEG C.

公开(公告)号：MY147742A

公开(公告)日：2013-01-15

申请号：MYPI20083643

申请日：2004-04-14

Applicant: BASF AG

Inventor： DIEHL VOLKER DR ,  JAEGER ULRICH DR ,  HAMMON ULRICH DR ,  SCHROEDER JUERGEN DR ,  RISSEL STEFFEN

IPC: B01F3/04 ,  B01D3/32 ,  C07C51/44

Abstract: A SEPARATING COLUMN CONTAINING A SEQUENCE OF MASS TRANSFER TRAYS THAT ARE SUPPORTED BY AT LEAST ONE COVERED DOUBLE-T SUPPORT (1) AND/OR COVERED U-SHAPED SUPPORT.

公开(公告)号：MY121878A

公开(公告)日：2006-02-28

申请号：MYPI20000659

申请日：2000-02-23

Applicant: BASF AG

Inventor： UNVERRICHT SIGNE DR ,  ARNOLD HEIKO DR ,  TENTEN ANDREAS DR ,  HAMMON ULRICH DR ,  NEUMANN HANS-PETER DR ,  HARTH KLAUS DR

IPC: B01J23/88 ,  C07C51/25 ,  B01J23/00 ,  B01J23/31 ,  B01J23/887 ,  B01J35/00 ,  C07B61/00 ,  C07C27/14 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C57/04 ,  C07C57/05

Abstract: A PROCESS FOR THE CATALYTIC GAS-PHASE OXIDATION OF PROPENE TO ACRYLIC ACID, IN WHICH THE REACTION GAS STARTING MIXTURE IS OXIDIZED, WITH AN INCREASED PROPENE LOADING, IN A FIRST REACTION STAGE, OVER A FIRST FIXED-BED CATALYST AND THEN THE ACROLEIN-COATING PRODUCT GAS MIXTURE OF THE FIRST REACTION STAGE IS OXIDIZED, IN A SECOND REACTION STAGE, WITH AN INCREASED ACROLEIN LOADING, OVER A SECOND FIXED-BED CATALYST, THE CATALYST MOLDINGS IN BOTH REACTION STAGES HAVING AN ANNULAR GEMETRY.

公开(公告)号：MY116119A

公开(公告)日：2003-11-28

申请号：MYPI19972788

申请日：1997-06-20

Applicant: BASF AG

Inventor： HAMMON ULRICH DR ,  RAUH ULRICH ,  SCHLIEPHAKE VOLKER DR ,  PIES WOLFGANG DR

IPC: C07C51/42 ,  C07C57/04 ,  C07C57/07 ,  F23G7/06 ,  F23D17/00 ,  F23G5/00 ,  F23G7/04

Abstract: IN A PROCESS FOR THE DISPOSAL OF LOW, MEDIUM, AND HIGH-BOILING SECONDARY COMPONENTS (1,2,3) FORMED DURING THE PREPARATION OF (METH) ACRYLIC ACID THE GASEOUS LOW BOILING SECONDARY COMPONENTS (2) ARE BURNED, WHILST LOW-BOILING AND MEDIUM-BOILING SECONDARY COMPONENTS (2) THAT ARE DISSOLVED IN WATER OPTIONALLY TOGETHER WITH HIGH-BOILING SECONDARY COMPONENTS (3) TREATED WITH SOLVENT ARE ADDED. (FIGURE 1)

公开(公告)号：DE19717165A1

公开(公告)日：1998-10-29

申请号：DE19717165

申请日：1997-04-23

Applicant: BASF AG

Inventor： SCHLIEPHAKE VOLKER DR ,  HAMMON ULRICH DR ,  RAUH ULRICH ,  SCHRAUT ARMIN DR

IPC: B01J8/06 ,  B01J19/00

Abstract: Reactor arrangement comprises at least two tubular reactors filled with solid particles, at least one reactor containing a temperature measuring device. The novelty is that the tubular reactors are arranged so that the ratio of the composition of the solid particles to the free cross-sectional surfaces of each reactor as well as the pressure loss, measured by passing an inert gas proportionally transversal to the free cross-sectional, are equal over each tubular reactor. Also claimed is a process for treating fluid compositions with the production and consumption of thermal energy using the above reactor arrangement.

公开(公告)号：DE59600212D1

公开(公告)日：1998-07-02

申请号：DE59600212

申请日：1996-01-13

Applicant: BASF AG

Inventor： HERBST HOLGER DR ,  HAMMON ULRICH DR

IPC: C07C51/44 ,  C07C57/04 ,  C07C57/07

Abstract: In the sepn. of (meth)acrylic acid (I) from mixts. contg. (I) as main prod. and lower aldehydes as by-prods. by rectification in a column with a distn. zone and a concn. zone, the mixt. is not supplied to the column directly. Instead, it is passed to a heated dwell vessel connected to the concn. zone, in which the mixt. is kept boiling, and the sump liquid from this vessel is fed to the column.

公开(公告)号：DE59405671D1

公开(公告)日：1998-05-20

申请号：DE59405671

申请日：1994-01-25

Applicant: BASF AG

Inventor： TENTEN ANDREAS DR ,  HAMMON ULRICH DR ,  WEIDLICH PETER DR ,  DOERFLINGER WALTER

IPC: B01J23/85 ,  B01J23/88 ,  B01J23/92 ,  B01J23/94 ,  B01J38/48 ,  B01J38/52 ,  B01J38/62 ,  B01J38/68 ,  C07C57/055

Abstract: Process for regenerating spent multimetal oxide oxidation catalysts from catalytic gas-phase oxidations of lower organic compounds, which catalysts, unspent, contain as base constituents the elements Mo, W, V and Cu in oxide form, by the action of oxidising agents and of solubilising aqueous ammonia containing added acetic acid and/or the ammonium salt thereof and subsequent drying and calcination in which, within the process, the content of the metallic constituents is quantitatively determined and supplemented to the respective original value.